4493729136 has 80 divisors (see below), whose sum is σ = 13237215264. Its totient is φ = 1301348352.

The previous prime is 4493729131. The next prime is 4493729137. The reversal of 4493729136 is 6319273944.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493729131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201201 + ... + 222416.

Almost surely, 2^4493729136 is an apocalyptic number.

It is an amenable number.

4493729136 is an abundant number, since it is smaller than the sum of its proper divisors (8743486128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4493729136 is a wasteful number, since it uses less digits than its factorization.

4493729136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423658 (or 423652 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The square root of 4493729136 is about 67035.2827695983. The cubic root of 4493729136 is about 1650.1963814010.

The spelling of 4493729136 in words is "four billion, four hundred ninety-three million, seven hundred twenty-nine thousand, one hundred thirty-six".